2180286553 has 4 divisors (see below), whose sum is σ = 2180441908. Its totient is φ = 2180131200.

The previous prime is 2180286539. The next prime is 2180286607. The reversal of 2180286553 is 3556820812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2076898329 + 103388224 = 45573^2 + 10168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2180286553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2180286653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54276 + ... + 85477.

It is an arithmetic number, because the mean of its divisors is an integer number (545110477).

Almost surely, 2^2180286553 is an apocalyptic number.

It is an amenable number.

2180286553 is a deficient number, since it is larger than the sum of its proper divisors (155355).

2180286553 is a wasteful number, since it uses less digits than its factorization.

2180286553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155354.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 2180286553 is about 46693.5386643591. The cubic root of 2180286553 is about 1296.6950672653.

The spelling of 2180286553 in words is "two billion, one hundred eighty million, two hundred eighty-six thousand, five hundred fifty-three".